Normal and Frictional Forces Ranking Task
Rank the boxes on the basis of the magnitude of the normal force acting on them.
Rank from largest to smallest. To rank items as equivalent, overlap them.
140 N pushing on 5kg box against wall
140 N pushing on 3kg box against wall
120 N pushing on 3kg box against wall
150 N pushing on 7kg box against wall
130 N pushing on 7kg box against wall
150 N pushing on 1kg box against wall
Homework Answers
From the above diagram,
The normal force (n) = Pushing force (F)
In this case normal force is independent of mass of box.
So the larger the pushing force have larger normal force.
Rank the boxes on the basis of the magnitude of the normal force acting on them( largest to smallest ).
(150 N pushing on 7kg box against wall) =(150 N pushing on 1kg box against wall ) > (140 N pushing on 5kg box against wall)= (140 N pushing on 3kg box against wall) > (130 N pushing on 7kg box against wall)> (120 N pushing on 3kg box against wall).
Part A.)Six boxes held at rest against identical walls. Rank the boxes on the basis of the magnitude of the normal forc...
Part A.)Six boxes held at rest against identical walls. Rank the boxes on the basis of the magnitude of the normal force acting on them. Rank from largest to smallest. To rank items as equivalent, overlap them. 1.)130N--->7kg 2.)150N--->1kg 3.)150N--->7kg 4.)120N--->3kg 5.)140N--->5kg 6.)140N--->3kg (Since the boxes are at rest, Newton's 2nd law dictates that the horizontal forces on each box must add up to zero. You can use this information to determine the normal forces. If two boxes are both...
Normal and Frictional Forces Ranking Task Six boxes held at rest against identical walls. Rank the...
Normal and Frictional Forces Ranking Task Six boxes held at rest against identical walls. Rank the boxes on the basis of the magnitude of the normal force acting on them. Rank from largest to smallest. To rank items as equivalent, overlap them.
Magnetic Light Switch Ranking Task
Magnetic Light Switch RankingSix identical vertical metal bars start at the positions shown below and move at constant velocities through identical magnetic fields. The bars make electrical contact with and move along frictionless metal rods attached to light bulbs.Part AAt the instant shown, rank these six scenarios on the basis of the magnitude of the current in the lightbulb. Rank from largest to smallest. To rank items as equivalent, overlap them.
Part B Now, assume the elevator is moving upward at increasing speed. Rank the magnitude of the forces. Rank from large...
Part B
Now, assume the elevator is moving upward at
increasing speed. Rank the magnitude of the forces.
Rank from largest to smallest. To
rank items as equivalent, overlap them.
Answer the following questions with
reference to the eight forces defined as follows.
the force of the 3kg block on the 2kg block, F3on2
the force of the 2kg block on the 3kg block, F2on3
the force of the 3kg block on the 1kg block, F3on1
the force of the...
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Conservation of Energy Ranking Task Six pendulums of various
masses m are released from various heights h above a tabletop, as
shown in the figures below. All the pendulums have the same length
and are mounted such that at the vertical position their lowest
points are the height of the tabletop and just do not strike the
tabletop when released. Assume that the size of each bob is
negligible.
Rank each pendulum on the basis of its initial gravitational
potential...
Velocity from Force Diagram Ranking Task Below are birds-eye views of six identical toy cars moving to the right at 2...
Velocity from Force Diagram Ranking Task
Below are birds-eye views of six identical toy cars moving to
the right at 2 m/s. Various forces act on the cars with magnitudes
and directions indicated below. All forces act in the horizontal
plane and are either parallel or at 45 or 90 degrees to the car's
motion.
Part A
Rank these cars on the basis of their speed a short time (ie.
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Time Dilation Ranking Task Five identical quintuplets leave earth when they reach the age of 21, in the year 2121. Each quintuplet goes on a spaceship journey that takes T years, as measured by a clock in each spaceship. During the journey they travel at a constant speed v, as measured on earth, except during the relatively short acceleration phases of their journey. Part A Rank these quintuplets on the basis of the year on earth when they return from...
elevator at rest
Part BNow, assume the elevator is moving upward at increasing speed. Rank the magnitude of the forces.Rank from largest to smallest. To rank items as equivalent, overlap them.Answer the following questions with reference to the eight forces defined as follows.the force of the 3kg block on the 2kg block, F3on2the force of the 2kg block on the 3kg block, F2on3the force of the 3kg block on the 1kg block, F3on1the force of the 1kg block on the 3kg block, F1on3the...
Circular Motion Ranking Task Six artificial satellites circle a space station at constant speed. The mass...
Circular Motion Ranking Task Six artificial satellites circle a space station at constant speed. The mass m of each satellie, distance L from the space station, and the speed u of each satellite are listed below. The satellites fire rockets that provide the force needed to maintain a circular orbit around the space station. The gravitational force is negligible Part A Rank each satellite based on its period. Rank from largest to smallest. To rank items as equivalent, overlap them.
Conservation of Momentum in Two Dimensions Ranking Task The figures below show bird's-eye views of six...
Conservation of Momentum in Two Dimensions Ranking Task The figures below show bird's-eye views of six automobile crashes an instant before they occur. The automobiles have different masses and incoming velocities as shown. After impact, the automobiles remain joined together and skid to rest in the direction shown by v_final. Rank these crashes according to the angle theta, measured counterclockwise as shown, at which the wreckage initially skids. Rank from largest to smallest. To rank items as equivalent, overlap them.
Normal and Frictional Forces Ranking Task Six boxes held at rest against identical walls. Rank the boxes on the basis of the magnitude of the normal force acting on them. Rank from largest to smallest. To rank items as equivalent, overlap them.
Magnetic Light Switch RankingSix identical vertical metal bars start at the positions shown below and move at constant velocities through identical magnetic fields. The bars make electrical contact with and move along frictionless metal rods attached to light bulbs.Part AAt the instant shown, rank these six scenarios on the basis of the magnitude of the current in the lightbulb. Rank from largest to smallest. To rank items as equivalent, overlap them.
Part B
Now, assume the elevator is moving upward at
increasing speed. Rank the magnitude of the forces.
Rank from largest to smallest. To
rank items as equivalent, overlap them.
Answer the following questions with
reference to the eight forces defined as follows.
the force of the 3kg block on the 2kg block, F3on2
the force of the 2kg block on the 3kg block, F2on3
the force of the 3kg block on the 1kg block, F3on1
the force of the...
Conservation of Energy Ranking Task Six pendulums of various
masses m are released from various heights h above a tabletop, as
shown in the figures below. All the pendulums have the same length
and are mounted such that at the vertical position their lowest
points are the height of the tabletop and just do not strike the
tabletop when released. Assume that the size of each bob is
negligible.
Rank each pendulum on the basis of its initial gravitational
potential...
Velocity from Force Diagram Ranking Task
Below are birds-eye views of six identical toy cars moving to
the right at 2 m/s. Various forces act on the cars with magnitudes
and directions indicated below. All forces act in the horizontal
plane and are either parallel or at 45 or 90 degrees to the car's
motion.
Part A
Rank these cars on the basis of their speed a short time (ie.
before any car's speed can reach zero) after the forces...
Circular Motion Ranking Task Six artificial satellites circle a space station at constant speed. The mass m of each satellie, distance L from the space station, and the speed u of each satellite are listed below. The satellites fire rockets that provide the force needed to maintain a circular orbit around the space station. The gravitational force is negligible Part A Rank each satellite based on its period. Rank from largest to smallest. To rank items as equivalent, overlap them.
Conservation of Momentum in Two Dimensions Ranking Task The figures below show bird's-eye views of six automobile crashes an instant before they occur. The automobiles have different masses and incoming velocities as shown. After impact, the automobiles remain joined together and skid to rest in the direction shown by v_final. Rank these crashes according to the angle theta, measured counterclockwise as shown, at which the wreckage initially skids. Rank from largest to smallest. To rank items as equivalent, overlap them.
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